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Tom Sieczkarek
08-10-2011, 12:28 PM
Is abs plastic safe to run on the laser? Worried about the off gas and its effect on the machine.

Dan Hintz
08-10-2011, 12:32 PM
Yes........

Richard Rumancik
08-10-2011, 12:42 PM
The gases probably won't affect the machine any more than any other plastic but they may affect you . . . the rubber component in ABS does not smell that great and even with a good exhaust system you will have smell. Also the parts will retain some odor for a while after cutting. Try to get lots of fresh air into the room. That's easier to do in summer . . .

Craig Matheny
08-10-2011, 1:49 PM
Hey you want a nasty smell engrave on Ostrich Eggs I had to move my machine outside it stunk so bad

Douglas J Miller
08-10-2011, 2:32 PM
Is there any way to tell which plastics are safe and which have pvc's in them?

Chris DeGerolamo
08-10-2011, 2:36 PM
Is there any way to tell which plastics are safe and which have pvc's in them?

Get a gob of it on a piece of metal (paper clip) and burn it. If it's green, you got chlorine and not laser safe.

Douglas J Miller
08-10-2011, 5:04 PM
Get a gob of it on a piece of metal (paper clip) and burn it. If it's green, you got chlorine and not laser safe.

Thank you!

Larry Bratton
08-10-2011, 6:27 PM
Actually it needs to be a piece of copper wire. Heat up the wire, stick it into the material and get some on the wire. Then stick it back in the flame. I use a MAP gas torch. If you see any green in the flame when it burns, don't use it in the laser. This is called the Bilstein test and here is a link to the instructions.
http://www.rarenotes.net/beilstein.html .


(http://www.rarenotes.net/beilstein.html)

Tom Sieczkarek
08-10-2011, 7:32 PM
Thanks for all the help!!

Chris DeGerolamo
08-11-2011, 8:37 AM
[QUOTE=Larry Bratton;1756845]Actually it needs to be a piece of copper wire. Heat up the wire, stick it into the material and get some on the wire. Then stick it back in the flame. I use a MAP gas torch. If you see any green in the flame when it burns, don't use it in the laser. This is called the Bilstein test and here is a link to the instructions.
http://www.rarenotes.net/beilstein.html .

The thought occurred to me to edit my post to read this way ^^ haha. Thanks for correcting me (I mean this sincerely, not sarcastically).

Larry Bratton
08-11-2011, 1:06 PM
[QUOTE=Chris DeGerolamo;1757172][QUOTE=Larry Bratton;1756845]Actually it needs to be a piece of copper wire. Heat up the wire, stick it into the material and get some on the wire. Then stick it back in the flame. I use a MAP gas torch. If you see any green in the flame when it burns, don't use it in the laser. This is called the Bilstein test and here is a link to the instructions.
http://www.rarenotes.net/beilstein.html .

The thought occurred to me to edit my post to read this way ^^ haha. Thanks for correcting me (I mean this sincerely, not sarcastically).[/QUOTE
NP-happens to the BEST of us :)